Nosewheel Weights?

[Radish]

If you're at Cosford, try the Quarter Scale Group stand. They usually have trye weights available for a small donation to Help The Heroes.

[jcf]

Tungsten weights are a big thing in Pinewood Derby circles, 1.7 times as dense as lead and non-toxic.

http://www.maximum-velocity.com/pinewood_derby_weight.htm

[PR19_Kit]

Depleted uranium should be even better. There's a few tons of that buried in a couple of concrete urns across the river from me, but I can't get at them for 10000 years or so.......

[The Wooksta!]

I use lead and have done for many years, usually the offcuts from the lead sinkers me dad casts for fishing.  I bash the hell out of it with a hammer then cut it into small bits.  Works for me. 

Then he gave me some thin lead sheet he'd got.  Made it easier to get into small spaces.

[Tuck]

There is a fella over on Hyperscale.com under Plant Trading.  His name is Terry Dean.  He does custom fitted nose weights for a large variety of kits.  They are cheap too.  I have several and can vouch for their good fit,etc.  Used them for my 1/72 B-36, etc.

[kitnut617]

Top pic is my tray of lead bit's and pieces, fishing weights, strips of self-sticking 1/4 oz. blocks (usually for balancing ceiling fan blades), keyfob ornament from my bowling days, a number of old white metal legs which came from a Sharkit kit (they all folded up after a couple of months sitting on the self), the two fairly large plumb bob looking things you'll never guess in a month of Sundays where I found those --- in a dog's squeaky toy (from China   ).

Next pic is a sheet of lead I got from the scrap metal dealer (he just gave it to me, about 5 lbs of it)

Last pic is another of those you'll never guess items, I was replacing the kitchen taps which had the pull-out nozzle, well to make the flexible hose retract there was this lump of lead clamped around the hose, the hole in it was big enough so the weight stayed at the bottom of the loop as you pulled the nozzle in and out.